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Finding the Fourth Proportional to 63,615.96, 87,790.22 and 35,321.72

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Solution

The fourth proportional to 63,615.96, 87,790.22 and 35,321.72 is: 48,744.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,615.96 : 87,790.22 = 35,321.72 : x
  2. Step 2: Convert to fraction form
    63,615.96/87,790.22 = 35,321.72/x
  3. Step 3: Cross multiply
    63,615.96x = 87,790.22 × 35,321.72
  4. Step 4: Simplify right side
    63,615.96x = 3,100,901,569.58
  5. Step 5: Solve for x
    x = 3,100,901,569.58/63,615.96
  6. Step 6: Final answer
    x = 48,744.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.